Film and TV Crossover: When I Transmigrate Into the Male Lead's Ex-Girlfriend

Can the original heroine end up with the male lead if he has an ex-girlfriend he still can’t forget?

(The male lead and his ex have to break up; the misunderstanding will be cleared up later. Our heroine is a strong, independent woman with her own career, and her life doesn’t revolve around the male lead. She transmigrated when she was a child, not later on, so she is the male lead’s ex-girlfriend. There’s no swapping her out.)